itsumi erika, girls und panzer, absurdres, commentary, highres, unfinished, 1girl, alternate hairstyle, ass, back, blue eyes, bra, closed mouth, from behind, frown, grey hair, hair ribbon, hair up, looking at viewer, looking back, medium hair, panties, ponytail, ribbon, simple background, sitting, solo, sweat, sweatdrop, thong, underwear, underwear only, white background, yellow bra, yellow panties